Deep hole indicating appliance



Aug. 21, 1945. v "E PAGE 2,383,272

DEEP HOLE INDICATING APPLIANCE Filed April 30, 1943 v 2 Sheets-Sheet 1 'Aug. 21, 1945. v PA 2,383,272

DEEP HOLE INDICATING APPLIANCE Filed April so, 1943 1 2 smu -sheet 2 Inventor MW B Patented Aug. 21 1945 DEEP HOLE 'INDICATING APPLIANCE Ernest V. Page, Portsmouth, N. H., assignor of one-halt to Harold V. Flanders, No.

Weare,

Application April 30, 1943, Serial No. 485,230 (01. 33-472) 2 Claims. This invention relates to new and useful improvements in gauges and, more particularly to an appliance for gauging the interior of bores and other openings which cannot easily be reached by conventional means.

a An important object of the invention is to provide an instrument for gauging work on lathes and also boring mills whereby the inte- .rior of, deep openings can be measured efiiciently and with precision.

Other objects and advantages of the invention will become apparent to the reader of the following description, a

a In the drawings:

Figure 1 represents a side elevational View of the device.

Figure 2 is a top plan view. a

Figure 3 is a fragmentary longitudinal, sectional view. H

Figure 4 is an outer end elevational view.

Figure 5' is a perspectiveview of the feeler,

Figure 6 is a fragmentary perspective view of l the shaft and gauge operator.

Referring to the drawings wherein like nu merals designate like parts, it can be seen that numeral 5 denotes an elongated barrel having bushings 6, 1 the ends thereof and through which an elongated shaft 8 is journaled. I The shaft 8 at its work entering end has a cylindrical head 9 laterally from which projects a pair of closelyspaced pintles 10,10. The other end of theshaft 8 is threaded and disposedinto athreaded recess in a shank II, which shank The outer end of the feeler which is denoted by numeral 21 is obliquely disposed as at 28 and terminates in a small head 29. The feeler 21 passes between the pintles l0, l0.

It can now be seen that any action of the feeler 21 will impart rotary motion to the head 9 and to the shaft 8, which of course will rotate the cross pin l2 to the end that whichever knob l3 or M is engaging the actuating element l5 of the indicator [5 will result in the operation of the indicator. One knob l3 or 14 is used when testing bores and other openings, while the other knob is used and the gauge instru- 'ment l5 changed accordingly when faces are being gauged.

While the foregoing specification sets forth the invention in specific terms, it is to be underoutside surstood that numerous changes in the shape, size, a and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the invention, what is claimed as new is:

1. A hole gauge of the character described comprising an elongated barrel, a shaft disposed longitudinally through the barrel and adapted for rotation, a springable feeler pivothas a cross pin I 2 disposedtherethrough and terminating in knobs l3, I4.

Projecting laterally from the outer end of the" barrel 5 is a stud for supporting an indicating gauge l5 of conventional design. This gauge has a case 16 from which projects an arm I1 and laterally from this arm I! is an arm I8 terminating in a split clamp IQ for embracing the stud 20. a

for tightening the clamp IS on the stud 20.

Any suitable supporting clamp 22 may be provided for the barrel 5. a

The device is provided with a feeler which consistsof a slotted block 23 through which a stud bolt is disposed and into the work entering end of the barrel 5. One end of the feeler has The clamp l9 has a clamp screw 2| a collar 25 which embraces a second stud bolt 26, and on this stud bolt the feeler is pivoted.

ally secured to one end of the barrel, means at a corresponding end of the shaft for engaging the feeler whereby the shaft is rotated when pressure is exerted on the feeler, a gauge instru ment'at the other endof the barrel and means driven by the shaft for actuating the instrument, said means for engaging the feeler comp-rising a pair of pintles projecting laterally fromthe shaft one at each side of the feeler.

2. In a gauge of the character described comprising an elongated barrel, a shaft rotatably disposed in the barrel, an indicating instrument mounted on one end of the barrel, operating means between the instrument and one end of the shaft, a swingable feeler pivotally secured to the opposite end of the barrel, a head on the shaft adjacent the feeler and provided with a pair of outstanding members between which the feeler isdisposed, said feeler operating to. rotate the shaft and consequently operate the instrument when pressure is exerted on said feeler.:

ERNEST V. PAGE. 

